The incredible bright teal and turquoise hues visible through the clouds in this image belong to a phytoplankton bloom flourishing in the Barents Sea, off the coast of Russia. Different types of phytoplankton reflect light of different colors, therefore a multicolored bloom such as the one visible here usually contains various different species of the tiny microorganisms. Coloration is also affected by the depth of the bloom – when the tiny organisms are located deeper in the water, less light is reflected and the color may appear duller.